Beizal

Its sheer mass causes most buildings to crumble at its touch.
It has a powerful internal generator that releases vast amounts of energy from its back fins as an electromagnetic pulse,
which can instantly destroy all nearby electronic devices, and even temporarily incapacitate highly resilient PA-Gear.
Standard lock-on missile control systems are rendered useless while the pulse is emitted, as all missile locking will fail.

Analysis of its body tissue has found DNA from Earth, indicating it may be a synthetic organism created from the genes of multiple creatures. Some of its physical attributes resemble those of prehistoric fish and Devonian placoderms, suggesting the Aggressors visited the Earth 400 million years ago. The Devonian Period also marked the first appearance of insects on the planet, which may explain the Aggressors' preference for insect creatures.